Information

• 10-bit address extension
• Support for System Management Bus (SMBus) Specification, version 2
• Programmable glitch input filter
• Low power mode wakeup on slave address match
• Range slave address support
• DMA support
44.1.2 Modes of operation
The I2C module's operation in various low power modes is as follows:
• Run mode: This is the basic mode of operation. To conserve power in this mode,
disable the module.
• Wait mode: The module continues to operate when the core is in Wait mode and can
provide a wakeup interrupt.
• Stop mode: The module is inactive in Stop mode for reduced power consumption,
except that address matching is enabled in Stop mode. The STOP instruction does
not affect the I2C module's register states.
44.1.3 Block diagram
The following figure is a functional block diagram of the I2C module.
Introduction
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
1010 Freescale Semiconductor, Inc.